Answer
Together, they have 99 marbles.
Explanation
Ravi has 33 marbles.
His brother has twice (two times) as many marbles as him. Ravi's brother has 33×2=66 marbles.
Together, they have 33+66=99 marbles.
Answer:
Adding a negative number is the same thing as subtracting. a and -a are a zero pair so they cancel each other out. They are both the same distance from 0.
Hope This Helps :)
O y = 2x +3
Step-by-step explanation:
n = 20
d = 6
a = 4
L = a + (n - 1)*d
L = 4 + (20 - 1)*6
L = 4 + 19*6
L = 118
Sum = (a + L)*n/2
Sum = (4 + 118) * 20/2
Sum = 122 * 10
Sum = 1220
60
5×7=35
35+25=60
Thats how you get you answer
